Massage instrument.



' PATE-NTSB JULY v31,` 1.906.

` No. 327,133. A

I. A. WESTON. MASSAGE INSTRUMENT.

ABPLIGATION FILED FEB; 26. 1904.

IIIIIII.v

' y INVENTON ZEW/'g2g .jeson WITNESSES:

' To all whom, it 17mg/ corn/cern:

Y cation.

* UNITED STATES PATENT OFFICE.

.,IRvpI-G A. WESTON, or SYRAOUSE, NEW YORK. MASISAGYEZIESTRIUYMENT.-

Patented July 31,1906.

pulman-med reu-nary 26,1904. serrure. 195,341.

i Be it known that I, IRvING A. WESTON, o Syracuse, 1n the countyfofOnondagaand State of New York, have invented a certain new and usefulImplrovement'in Massagev In-v struments, of lwhic the vfollowing is aspeci- 1 Theffm'ainobject ofiny invention is to pro# vide a 'simplifiedform of power-driven massagerinstrument or apparatus for mechanicallyperforming the various operations which are usefulin massagetreatments.v

It vconsist-s in a novel arrangement of parts in simple yet efficientform adapted so that the'length of stroke or `degree of vibration willofthe operator..

Referring to vthe accompanying drawings,

. Figure 1 is a longitudinal section lof massagev` instrumentconstructed `according to my inf vention; same on lines-XX of Fig. 1'. I

Fig. 2 yis Aa transverse section of j 3 is a view ofthe main shaftdetached. s. 4, 5,6, `and 7 are 'details of the parts use hereinaftermore fully described. V A In carrying out the objects of my inven tion Tprovide a cylindrical'metal case a, with a radial tubular extension bnear one end of said casing a, onstitutingl a handle by whichthe'instrumen is manipulated, and is formed with alengthwiseopeningtherethrough from end to end, O'n'e end, opposite tov that nearwhich the tubular extension b is located, being smaller than the oposite end and is closed by a ca c', while tlhe larger end of the casingis close by a cap c.

Theinner end of the tubular extension?) communicates with the 'interiorof the cas-.` ling a, and in thisextension is` guided a reciprocatoryplunger'e, having a reduced youter end which is guided ina suitablescreW-cap-fitted inthe outer end of the tubular extension band adaptedlto support a beater d, the latter being fitted upon the reduced endkofthe plungere andl 1s there-L and is therefore held in lace andadjuste by a cap cf. This ring f as an opening theresuitable rscrew-bushing.

through from end to end axially ofthe casing a, the inner end oftheopening being smaller tially-s herical bearing-face, in rwhich, is seat--ed a bal member g, and the outer end of the ring f is threadedinteriorly and receives a s'also provided with a partially-sphericalbearingface forming' a continuation of the inner spherical bearing-faceof the ringj" vand than its outer end and is formed with a par- I(See-Eig. 5.) Thisv serving to retaintheball g Withinthering f',

at the same time t'o permit said ball to lbe re- `moved y'and reinsertedthrough the k larger openend of the ring f The opening in the end ofthecasing in which the cap c( is fitted is slightly larger than the annulusm and rin f to permit these 'parts to be readily place in operative thecaslng.

easy S dingfit a sleeve j. This is ofconsiderably less llength than thevdistance bef tween the annular shoulder mand inner end ofthe cap c't'opermit said 'sleeve to be moved position or removed from 4 Theinterior boreof the casing a between ,thev annular shoulder m and cap cis'preferendwise or axially ail limited distance for a' purposevpresently described, 'such endwise movement being effected throu h Atheme` which is 1 dium of 'a -suitable handpiece screwed in the inner` endof the sleeve j', as best seen in Fi 1, and projects outwardly throughaslot in the casing c, said slot k bein of greater len th than thediameter of lays in said slotthe andpiecey K W 'ch and, togetherWith'the si es of the slot, prevent rotation of the sleeve j. j Thissleeve j has a central lengthwise bore, in which 1s j'ournale'd a rotaryshaft h, having sliding connection with the adjacent end ofthe flexi bledriving-shaft t, as best seen in Fi .1.

The end of the shaft h nearest the ring f is enlarged at o to ar greaterdiameter than the interior diameter of the sleeve j" and abutsagainstthe adjacent endof said.sleeve,.while the opposite end of saidshaft is reduced in diameter andreceives a suitablezannulus or Ioocollar, which Iis also of larger diameter than the adjacent face oftheannular enlargement ,o atone side of its axis 'of rotation', as bestseen in Figs. 1 and 3, and projects endwise from said annularenlargement in the incline ringf and'plunger e,'toge`ther With thebeaterd,-to reci rocate through varying axial distanees,W chisuthe-.primarobject sought.

vIt is evident from :the oregoing description that the sleeve-j( and itsinclosed shaft h are locked against'in'dependent .axial movement,although the shaft his free to rotate andthe 'sleeve is held against*rotation by the handpiec'ek.-

Iam aware Ithat 'I am not the rst to provide means broadl iforreciprocating a beater, :sueh'de'vices eing shovvn in the patents toBihlmaier, No.- 688',5'81,1December 10, 1901, and lalso inChurch, No1743,147, 4November 3,' 1908 but vI believe I am the first to providearotating-shaftf--With a rigid s indle projecting from one end of the saft throughA- a b'all which is mounted in a par`tially-spherical--bearing attached to a beater plunge1",a'ndIfal'sobel'ifeve .that4 I am the first to'movesaid shaft, together' with itsnon-rotatable sleeve,4 endw-ise or axially for the purpseborlmoving theeccentric spindle through 't eI a Inoperation'the'shaftfh'and itseccentric s indle j are rotated through a medium of the s'aft 'f,'reciprocating motionv being transvferred tofth'e plungere through themedium of the eccentric spindle y', 'ball-g, and ring f', and the degree'of such movement is controlled by the handpiece 1c lmoving back andforthv in the slot 7c andl imparting similar movement tothe shaft h,sleeve j', and ec! centric' spindle y', the kaxis lofvvhich latter isdisposed -at an angle With the .axis of' revolution'i'1 said shaft, withitsfreeend at one side of said axis, Iso that as the-'shaft h andspindle j-are's'hifted oaelrl andfo'rth the degree of the movementof-tghe' beater i's correspondingly varied;

What I claim as new, and desire to secure by Letters Patent, 1s-

1. In a massa e lnstrument a casmg con- I stituting a hand e having alateral tubular extension, a' plunger movable radially in saidextension, a beater on the outer end of the plunger, a ring pivoted tothe inner end of the plunger and provided with a partially-sphericalinner bearing, a ball j ournaled in said bearing and rovided with acentral opening, a non-rotatable-sleeve slidable endwise in the casingat ri ht angles to the movement of the plunger,"a andpiece attached tothe sleeve and extended to the outside of the casing, a rotary shaftjournal'ed in said sleeve and movable endwise therewith and a spindlehaving one end. rigidly united yto thes'haft and extending endwisetherefroml at an angle viti its axis and through the opening of t e 2.In a massage instrument a casing, a rotaryshaft movable endwise Withinthe casing, means to move the shaft endwise, a spind e projectingfrom'the end of the shaft at an angle with and across its axis, anon-rotatable ring, an oscillatory ball seated in the ring and providedwith an opening receiving. the free end of said spindle, and a plungerattached to the ring and the beater on the plunger.

.3. In a massage instrumenta casing constituting a handle and providedwith a lateral tubular extension, a plunger movable radially in saidextension, a'beater on the plunger, a non-rotatable ring pivoted toy oneend of the plunger, a ball journaledi in the ring and provided With adiametrical opening, a rotary shaft movable endvvise Within the casingand provided with a rigid spindle projectin endwise at an an le With ltsaxis and slidab e endwise with sa1d shaft through the opening in theball, and means for moving said shaft endWise.

In testimony whereof I have hereunto signed my name, in the presence oftWo attesting wltnesses, at Syracuse, in the county of Onondaga, in theState of New' York, this 24th day of February, 1904.

' IRVING A. WESTON. Witnesses;-

D. LAvINE, S. DAvIs.

